package cn.dankal.basiclib.util;

import android.content.Context
import android.graphics.Bitmap
import android.graphics.PointF
import android.graphics.drawable.Drawable
import android.view.View
import android.widget.ImageView
import androidx.core.graphics.drawable.RoundedBitmapDrawableFactory
import cn.dankal.basiclib.R
import com.bumptech.glide.Glide
import com.bumptech.glide.request.RequestOptions
import com.bumptech.glide.request.target.BitmapImageViewTarget
import com.bumptech.glide.request.target.ImageViewTarget
import com.luck.picture.lib.engine.ImageEngine
import com.luck.picture.lib.listener.OnImageCompleteCallback
import com.luck.picture.lib.tools.MediaUtils
import com.luck.picture.lib.widget.longimage.ImageSource
import com.luck.picture.lib.widget.longimage.ImageViewState
import com.luck.picture.lib.widget.longimage.SubsamplingScaleImageView

/**
 * <pre>
 *     e-mail : junfeng.nie@duntech.com.cn
 *     time   : 2020-01-19
 *     desc   :
 *     version: com.jingqi.live.utils
 *     Copyright: Copyright（c）2018
 *     Company:
 * </pre>
 * @author niejunfeng
 */

/**
 * @author：luck
 * @date：2019-11-13 17:02
 * @describe：Glide加载引擎
 */
class GlideEngine private constructor() : ImageEngine {

    /**
     * 加载图片
     *
     * @param context
     * @param url
     * @param imageView
     */
    override fun loadImage(context: Context, url: String, imageView: ImageView) {
        Glide.with(context)
                .load(url)
                .into(imageView)
    }

    /**
     * 加载网络图片适配长图方案
     * # 注意：此方法只有加载网络图片才会回调
     *
     * @param context
     * @param url
     * @param imageView
     * @param longImageView
     * @param callback      网络图片加载回调监听
     */
    override fun loadImage(
            context: Context, url: String,
            imageView: ImageView,
            longImageView: SubsamplingScaleImageView, callback: OnImageCompleteCallback?
    ) {
        Glide.with(context)
                .asBitmap()
                .load(url)
                .into(object : ImageViewTarget<Bitmap>(imageView) {
                    override fun onLoadStarted(placeholder: Drawable?) {
                        super.onLoadStarted(placeholder)
                        callback?.onShowLoading()
                    }

                    override fun onLoadFailed(errorDrawable: Drawable?) {
                        super.onLoadFailed(errorDrawable)
                        callback?.onHideLoading()
                    }

                    override fun setResource(resource: Bitmap?) {
                        callback?.onHideLoading()
                        if (resource != null) {
                            val eqLongImage = MediaUtils.isLongImg(
                                    resource.width,
                                    resource.height
                            )
                            longImageView.visibility = if (eqLongImage) View.VISIBLE else View.GONE
                            imageView.visibility = if (eqLongImage) View.GONE else View.VISIBLE
                            if (eqLongImage) {
                                // 加载长图
                                longImageView.isQuickScaleEnabled = true
                                longImageView.isZoomEnabled = true
                                longImageView.isPanEnabled = true
                                longImageView.setDoubleTapZoomDuration(100)
                                longImageView.setMinimumScaleType(SubsamplingScaleImageView.SCALE_TYPE_CENTER_CROP)
                                longImageView.setDoubleTapZoomDpi(SubsamplingScaleImageView.ZOOM_FOCUS_CENTER)
                                longImageView.setImage(
                                        ImageSource.bitmap(resource),
                                        ImageViewState(0f, PointF(0f, 0f), 0)
                                )
                            } else {
                                // 普通图片
                                imageView.setImageBitmap(resource)
                            }
                        }
                    }
                })
    }

    /**
     * 加载网络图片适配长图方案
     * # 注意：此方法只有加载网络图片才会回调
     *
     * @param context
     * @param url
     * @param imageView
     * @param longImageView
     * @ 已废弃
     */
    override fun loadImage(
            context: Context, url: String,
            imageView: ImageView,
            longImageView: SubsamplingScaleImageView
    ) {
        Glide.with(context)
                .asBitmap()
                .load(url)
                .into(object : ImageViewTarget<Bitmap>(imageView) {
                    override fun setResource(resource: Bitmap?) {
                        if (resource != null) {
                            val eqLongImage = MediaUtils.isLongImg(
                                    resource.width,
                                    resource.height
                            )
                            longImageView.visibility = if (eqLongImage) View.VISIBLE else View.GONE
                            imageView.visibility = if (eqLongImage) View.GONE else View.VISIBLE
                            if (eqLongImage) {
                                // 加载长图
                                longImageView.isQuickScaleEnabled = true
                                longImageView.isZoomEnabled = true
                                longImageView.isPanEnabled = true
                                longImageView.setDoubleTapZoomDuration(100)
                                longImageView.setMinimumScaleType(SubsamplingScaleImageView.SCALE_TYPE_CENTER_CROP)
                                longImageView.setDoubleTapZoomDpi(SubsamplingScaleImageView.ZOOM_FOCUS_CENTER)
                                longImageView.setImage(
                                        ImageSource.bitmap(resource),
                                        ImageViewState(0f, PointF(0f, 0f), 0)
                                )
                            } else {
                                // 普通图片
                                imageView.setImageBitmap(resource)
                            }
                        }
                    }
                })
    }

    /**
     * 加载相册目录
     *
     * @param context   上下文
     * @param url       图片路径
     * @param imageView 承载图片ImageView
     */
    override fun loadFolderImage(context: Context, url: String, imageView: ImageView) {
        Glide.with(context)
                .asBitmap()
                .load(url)
//            .override(180, 180)
//            .centerCrop()
//            .sizeMultiplier(0.5f)
                .apply(RequestOptions().placeholder(R.drawable.picture_image_placeholder))
                .into(object : BitmapImageViewTarget(imageView) {
                    override fun setResource(resource: Bitmap?) {
                        val circularBitmapDrawable =
                                RoundedBitmapDrawableFactory.create(context.resources, resource)
                        circularBitmapDrawable.cornerRadius = 8f
                        imageView.setImageDrawable(circularBitmapDrawable)
                    }
                })
    }


    /**
     * 加载gif
     *
     * @param context   上下文
     * @param url       图片路径
     * @param imageView 承载图片ImageView
     */
    override fun loadAsGifImage(
            context: Context, url: String,
            imageView: ImageView
    ) {
        Glide.with(context)
                .asGif()
                .load(url)
                .into(imageView)
    }

    /**
     * 加载图片列表图片
     *
     * @param context   上下文
     * @param url       图片路径
     * @param imageView 承载图片ImageView
     */
    override fun loadGridImage(context: Context, url: String, imageView: ImageView) {
        Glide.with(context)
                .load(url)
//            .override(200, 200)
//            .centerCrop()
                .apply(RequestOptions().placeholder(R.drawable.picture_image_placeholder))
                .into(imageView)
    }

    companion object {

        private var instance: GlideEngine? = null

        val GET_IMAGE_BY_CAMERA = 2001
        val GET_IMAGE_FROM_PHONE = 2002

        fun createGlideEngine(): GlideEngine {
            if (null == instance) {
                synchronized(GlideEngine::class.java) {
                    if (null == instance) {
                        instance = GlideEngine()
                    }
                }
            }
            return instance!!
        }
    }
}